Negative COVID-19 antibody test. A negative result means antibodies weren't detected in your blood sample. There are various reasons why: You haven't been infected with SARS-CoV-2 previously.

Discover what non-reactive HIV test results really mean and why testing timing, window periods, and retesting are crucial for ...

A non-reactive result in an HIV test generally means that you don't have HIV. It may also mean you tested too soon after ...

A negative antibody test tells you that you don't have harmful antibodies in your blood. If you're also Rh-positive, you can safely carry a baby with either a + or - blood type.

Did you know that certain medications can cause symptom of 'Antibody test negative'. Find these drugs listed on the page and be warned of similar symptoms as possible side-effects.

Learn about the hepatitis C antibody test, which is used to detect when someone has had the hepatitis C virus. ... A non-reactive or negative test result means that the person does not have the virus.

If your test is positive, meaning antibodies were present in your blood, this could indicate that there is an autoimmune condition affecting your thyroid gland. If the test is negative, it is less ...